Roller conveying device for strips of material.



0. OEHRING. ROLLER CONVEYING DEVICE FOR STRIPS 0F MATERIAL.

Patented Apr. 5, 1910.

APPLIOA'IION FILED NOV. 17, 1909'.

UNITED sTAtrEs PATENT oFFIcE.

OSCAR OEHBING,

OF BERLIN, GERMANY, ASSIGNOR TO AMERICAN STAMiP AND TIGKET VENDING MACHINE COMPANY, OF NEW YORK, N. Y.

Specification Letters Patent.

Patented Apr. 5, 1910.

Application filed November 17, 1909. Serial No. 528,832.

To all whom it may concern:

Be it known that I, OSCAR OEHRING, manager, a subject of the German Emper0r,-residing at Berlin, German Em ire, have invented certain new and use 111 Improvements in Roller Conveying Devices for Strips of Material, of which the following is a specification.

This invention relates to a roller conveying device for cuttings from material in the form of strips, such as postage stamps, railway, or tram tickets, receipts and the like.

\Vhen cuttings of different lengths had to be conveyed in the same apparatus in the known roller conveying devices, it was necessary that the conveyin rollers intended for the one length should e removed from the apparatus and be replaced by others,.the circumferences of which corresponded to the length of strip to be moved forward by a single revolution. Consequentl a lar e number of'conve ing rollers of ifi'erent iameters had to e provided for one apparatus, one being used at a time.

According to the present invention the conve ing of different lengths is always ef fecte b the same pair of rollers, thls being ma e possible by the circumference of the conve ing roller being adjustable to the length to be conveyed. For this fpurpose the conveying roller is composed 0 two disks which can be adjusted in relation to one another from outside and are provided on the edge with a recess so that the remaining efiective circumference of each disk corre-' sponds to the smallest length to be conveyed. B rotating the two disks one against the ot er in such a manner that the recesses in each disk are not opposite one another, the

conveyin length correspondin to one revoconveying roller cuttings of difi'erent lengths can be conveyed without difliculty. I

One form of the invention is illustrated by way of example in the accompanying drawing. Figure 1 being a front elevation, Fi

2 a plan indicating the position correspon ing to the conveying of the smallest cut.

Fi 3 is a diagram illustrating the variability of the conveying length. 7

The material a to be conveyed and which is in the form of a strip is moved along the support (I by the conveying rollers I) c c. The upper roller 5 is sprin seated in the known-manner and serves or pressing the strip to be forwarded against the actual conveying roller 0 which is actuated in the known manner by the spur wheel 6 connecte with the driving gear.

In accordance with the invention the conveying roller 0 consists of two disks of equal diameter arranged on the shaft 7 one of which disks is firmly connected with the shaft f while the other 0 is seated on the shaft so that it can be adjusted as desired by means of an adjusting screw 9 or'the like. Both the disks 0 c are provided on the edge with a recess 71. the length of which corresponds to the difference between thelargest and the smallest length of strip to be'conveyed at one revolution. The largest cut or length to be conveyed by one revolution of the shaft f is evidently determined by the complete ideal circumference, the smallest by the efiective circumference, of the conveying disks, that is after deduction of the length of the recess h. If now for example the smallest length of strip is to be conveyed, the two disks 0 0' are so adjusted in relation to one another, that the two recesses 72, come opposite one another, Fig. 1. If a longer piece is to be conveyed the adjustin screw 9 is loosened and the disk 0' rotated opposite the disk 0 so far that the full edge of the former comes opposite the recess in the latter and to such an extent as the length to be conveyed exceeds the desired correspondingly to the different,

lengths of the cuts.

This conveying device can of course employed in all possible kinds of apparatus for delivering, printing, perforating, sepa rating etc. material in the form of strips, and be combined if necessary in the known manner with other conveying devices, for example a conveying device acting through prongs or the like.

What I claim is:

1. In a conveying device of the character disclosed, the combination with a shaft, of article conveying means mounted thereon and comprising a pair of spaced integral disks, separately mounted on the shaft and having portions of their article-engaging peripheries cut away, one of said disks being fixed to the shaft, the other being rotatable on the said shaft to bring its cut away portion into more or less overlap in relation with the cut-away portion of t e ed disk, and means for securing the rotatable disk to the shaft inde endently of the fixed disk and thereby hol ing it against rotation on said shaft in its adjusted positions.

.2. In a conveying device of the character disclosed, the combination with an articlesupporting table, of a (pressure roller located 'the table, the eriphery of the latter disk cooperating wit the pressure roller and having a portion cut away, and a device for securing the latter disk against rotation and in different positions on the shaft with its cut-away ortion in more or less overlapping relation to the cut-away portion of the first mentioned disk.

In testimony whereof I have afiixed my signature in presence of two witnesses.

OSCAR OEHRING.

Witnesses HENRY HASPER, VVOLDEMAR HAUPT. 

